Apel, E., J. Calvert, D. Riemer, et al., 1998: Measurements comparison of oxygenated volatile organic compounds at a rural site during the 1995 SOS Nashville Intensive. J. Geophys. Res., 103, 22,295-22,316.
 
.         , J. Calvert, J. Greenberg, D. Riemer, et al., 1998: Generation and validation of oxygenated volatile organic carbon standards for the 1995 Southern Oxidants Study Nashville Intensive. J. Geophys. Res., 103, 22,281-22,294.

Ball, S., A. Fried, B. Henry and M. Mozurkewich*, 1998: The hydrolysis of ClONO2 on sub-micron liquid sulfuric acid aerosol. Geophys. Res. Lett., 25, 3339-3342.

Baugh, W., F. Kruse*, and W. Atkinson, Jr.*, 1998: Quantitative geochemical mapping of ammonium minerals in the southern Cedar Mountains, Nevada, using the airborne visible/infrared imaging spectrometer (AVIRIS). Remote Sens. Environ., 65, 292-308.

*Berresheim, H., and F. Eisele, 1998: Sulfur chemistry in the Antarctic troposphere experiment: An overview of project SCATE. J. Geophys. Res., 103, 1619-1627.

*Berresheim, H., J. Huey*, R. Thorn*, F. Eisele, D. Tanner, and A. Jefferson, 1998: Measurements of dimethyl sulfide, dimethyl sulfoxide, dimethyl sulfone, and aerosol ions at Palmer Station, Antarctica. J. Geophys. Res., 103, 1629-1637.

*Bilde, M., T. Wallington*, C. Ferronato*, J. Orlando, G. Tyndall, E. Estupiñan, and S. Haberkorn, 1998: Atmospheric chemistry of CH2BrCl, CHBrCl2, CHBr2Cl, CF3CHBrCl, and CBr2Cl2. J. Phys. Chem. A, 102, 1976-1986.

Brasseur, G., F. Lefèvre*, and A. Smith, 1997: Chemical-transport models of the atmosphere. Perspectives in Environmental Chemistry, D. L. Macadly, Ed., Oxford Univ. Press, 369-399.

Brasseur, G., R. Cox*, D. Hauglustaine, et al., 1998: European scientific assessment of the atmospheric effects of aircraft emissions. Atmos. Environ., 32, 2329-2418.

*Brune, W., I. Faloona*, D. Tan*, A. Weinheimer, T. Campos, B. Ridley, et al., 1998: Airborne in-situ OH and HO2 observations in the cloud-free troposphere and lower stratosphere during SUCCESS. Geophys. Res. Lett., 25, 1701-1704.

Campos, T., A. Weinheimer, et al., 1998: Measurement of NO and NOy emission indices during SUCCESS. Geophys. Res. Lett., 25, 1713-1716.

Cantrell, C., A. Zimmer*, and G. Tyndall, 1997: Absorption cross sections for water vapor from 183 to 193 nm. Geophys. Res. Lett., 24, 2195-2198.

Cantrell, C., R. Shetter, J. Calvert, F. Eisele, and D. Tanner, 1997: Some considerations of the origin of nighttime peroxy radicals observed in MLOPEX 2c. J. Geophys. Res., 102, 15,899-15,913.

Chen, L., J. London*, and G. Brasseur, 1997: Middle atmospheric ozone and temperature responses to solar irradiance variations over 27-day periods. J. Geophys. Res., 102, 29,957-29,979.

*Clarke, A., J. Varner*, F. Eisele, R. Mauldin, D. Tanner, and M. Litchy*, 1998: Particle production in the remote marine atmosphere: Cloud outflow and subsidence during ACE 1. J. Geophys. Res., 103, 16,397-16,409.

*Davis, D., G. Chen*, P. Kasibhatla*, A. Jefferson, D. Tanner, F. Eisele, D. Lenschow, W. Neff*, and H. Berresheim*, 1998: DMS oxidation in the Antarctic marine boundary layer: Comparison of model simulations and field observations of DMS, DMSO, DMSO2, H2SO4(g), MSA(g), and MSA(p). J. Geophys. Res., 103, 1657-1678.

*Dessler, A., M. Burrage*, J.-U. Grooss*, J. Holton*, J. Lean*, S. Massie, M. Schoeberl*, A. Douglass*, and C. Jackman*, 1998: Selected science highlights from the first 5 years of the Upper Atmosphere Research Satellite (UARS) program. Rev. of Geophys., 36, 183-210.

*Donaldson, D., J. Orlando, S. Amann*, G. Tyndall, R. Proos*, B. Henry, and V. Vaida*, 1998: Absolute intensities of nitric acid overtones. J. Phys. Chem. A, 102, 5171-5174.

Edwards, D.P., M. López-Puertas*, and R.R. Gamache*, 1998: The non-LTE correction to the vibrational component of the internal partition sum for atmospheric calculations. J. Quant. Spectrosc. Radiat. Transfer, 59, 423-436.

Eisele, F. L., R. L. Mauldin III, D. J. Tanner, J. R. Fox, T. Mouch*, and T. Scully*, 1997: An inlet/sampling duct for airborne OH and sulfuric acid measurements. J. Geophys. Res., 102, 27,993-28,001.

*Fehsenfeld, F., L. Huey*, D. Sueper*, R. Norton*, E. Williams*, F. Eisele, R. Mauldin III, and D. Tanner, 1998: Ground-based intercomparison of nitric acid measurement techniques. J. Geophys. Res., 103, 3343-3353.

*Ferronato, C., J. Orlando, and G. Tyndall, 1998: Rate and mechanism of the reactions of OH and Cl with 2-methyl-3-buten-2-ol. J. Geophys. Res., 103, 25,579-25,586.

Flocke, F., A. Volz-Thomas*, H-J. Buers*, W. Pätz*, H-J. Garthe*, and D. Kley*, 1998: Long-term measurements of alkyl nitrates in southern Germany 1. General behavior and seasonal and diurnal variation. J. Geophys. Res., 103, 5729-5746.

         , Atlas, S. Madronich, S. Schauffler, et al., 1998: Observations of methyl nitrate in the lower stratosphere during STRAT: Implications for its gas phase production mechanisms. Geophys. Res. Lett., 25, 1891-1894.

Fried, A., B. Henry, and S. Sewell, 1998: Potential calibration errors in carbonyl sulfide permeation devices: Implications for atmospheric studies. J. Geophys. Res., 103, 18,895-18,906.

         ., B Henry, B. Wert, S. Sewell, and J. R. Drummond*, 1998: Laboratory, ground-based, and airborne tunable diode laser systems: performance characteristics and applications in atmospheric studies. Appl. Phys. B, 67, 317-330.

*Fromm, M., J. Lumpe*, R. Bevilacqua*, E. Shettle*, J. Hornstein*, S. Massie and K. Fricke*, 1997: Observations of Antarctic polar stratospheric clouds by POAM II: 1994-1996. J. Geophys. Res., 102, 23,659-23,672.

Garcia, R.R., T.J. Dunkerton*, R.S. Lieberman*, and R.A. Vincent*, 1997: Climatology of the semiannual oscillation of the tropical middle atmosphere. J. Geophys. Res., 102, 26,019-26,032.

*Geller, M.A., V.A. Yudin*, B.V. Khattatov, and M.E. Hagan*, 1997: Modeling the diurnal tie with dissipation derived from UARS/HRDI measurements. Ann. Geophysicae, 15, 1198-1204.

*Geron, C., D. Nie*, R. Arnts*, T. Sharkey*, E. Singaas*, P. Vanderveer*, A. Guenther, J. Sickles II*, and T. Kleindienst*, 1997: Biogenic isoprene emission: Model evaluation in a southeastern United States bottomland deciduous forest. J. Geophys. Res., 102, 18,889-18,901.

Gille, J., L. Lyjak, P. Bailey, A. Roche*, J. Kumer*, and J. Mergenthaler*, 1998: Update to the stratospheric nitric acid reference atmosphere. Adv. Space Res., 21, 1403-1412.

Gilpin, T., E. Apel, A. Fried, B. Wert, J. Calvert, Z. Genf*, P. Dasgupta*, J. Harder*, B. Heike*, B. Hopkins*, H. Westberg*, T. Kleindienst*, Y-N. Lee* X. Zhou*, W. Lonneman*, and S. Sewell, 1997: Intercomparison of six ambient [CH2O] measurement techniques. J. Geophys. Res., 102, 21,161-21,188.

Guenther, A., and A. Hills, 1998: Eddy covariance measurement of isoprene fluxes. J. Geophys. Res., 103, 13,145-13,152.

Hannigan, J., M. Coffey, W. Mankin, and A. Goldman, 1998: Column observations of stratospheric gases at Søndre Strømfjord, Greenland during winter 1994-1995. J. Atmos. Chem., 30, 103-118.

Harley, P., A. Guenther, and P. Zimmerman, 1997: Environmental controls over isoprene emission in deciduous oak canopies. Tree Physiology, 17, 705-714.

*Hayashi, H., M. Shiotani*, and J. Gille, 1998: Vertically stacked temperature disturbances near the equatorial stratopause as seen in cryogenic limb array etalon spectrometer data. J. Geophys. Res., 103, 19,469-19,483.

Hess, P., and S. Madronich, 1997: On tropospheric chemical oscillations. J. Geophys. Res., 102, 15,949-15,965.

Holland, E., and J-F. Lamarque, 1997: Modeling bio-atmospheric coupling of the nitrogen cycle through NOx emissions and NOy deposition. Nutr. Cycling Agroecosys., 48, 7-24.

         , B. Braswell*, J-F. Lamarque, A. Townsend*, J. Sulzman, J-F. Müller*, F. Dentener*, G. Brasseur, H. Levy II*, J. Penner*, and G-J. Roelofs*, 1997: Variations in the predicted spatial distribution of atmospheric nitrogen deposition and their impact on carbon uptake by terrestrial ecosystems. J. Geophys. Res., 102, 15,849-15,866.

*Hungate, B., E. Holland, R. Jackson*, F. Chapin III*, H. Mooney*, and C. Field*, 1997: The fate of carbon in grasslands under carbon dioxide enrichment. Nature, 388, 576-579.

*Jaeglé, L., D. Jacob*, W. Brune*, D. Tan*, I. Faloona*, A. Weinheimer, B. Ridley, T. Campos, and G. Sachse*, 1998: Sources of HOx and production of ozone in the upper troposphere over the United States. Geophys. Res. Lett., 25, 1709-1712.

         , D. Jacob*, Y. Wang*, A. Weinheimer, B. Ridley, T. Campos, G. Sachse*, and D. Hagen*, 1998: Sources and chemistry of NOx in the upper troposphere over the United States. Geophys. Res. Lett., 25, 1705-1708.

         , D.J. Jacob*, P.O. Wennberg*, C.M. Spivakovsky*, T.F. Hanisco*, E.J. Lanzendorf*, E.J. Hintsa*, D.W. Fahey*, E.R. Keim*, M.H. Proffitt*,E.L. Atlas, F. Flocke, S. Schauffler, C.T. McElroy*, C. Midwinter*, L. Pfister*, and J.C. Wilson*, 1997: Observed OH and HO2 in the upper troposphere suggest a major source from convective injection of peroxides. Geophys. Res. Lett., 24, 3181-3184.

Jefferson, A., D. Tanner, F. Eisele, and H. Berresheim*, 1998: Sources and sinks of H2SO4 in the remote Antarctic marine boundary layer. J. Geophys. Res., 103, 1639-1645.

         , D. Tanner, F. Eisele, D. Davis*, G. Chen*, J. Crawford*, J. Huey*, A. Torres*, and H. Berresheim*, 1998: OH photochemistry and methane sulfonic acid formation in the coastal Antarctic boundary layer. J. Geophys. Res., 103, 1647-1656.

         , F. Eisele, P. Ziemann*, R. Weber*, J. Marti*, and P. McMurry*, 1997: Measurements of the H2SO4 mass accommodation coefficient onto polydisperse aerosol. J. Geophys. Res., 102, 19,021-19,028.

*Kawamoto, N., M. Shiotani*, and J. Gille, 1997: Equatorial Kelvin waves and corresponding tracer oscillations in the lower stratosphere as seen in LIMS data. J. Meteorological Soc. of Japan, 75, 763-773.

Khosravi, R., G. Brasseur, A. Smith, D. Rusch*, J. Waters*, and J. Russell III*, 1998: Significant reduction in the stratospheric ozone deficit using a three-dimensional model constrained with UARS data. J. Geophys. Res., 103, 16,203-16,219.

Klinger, L., 1997: The silence of the ecologists. Bull. Ecolog. Soc. America, 78, 172-173.

         , and D.J. Erickson III, 1997: Geophysiological coupling of marine and terrestrial ecosystems. J. Geophys. Res., 102, 25,359-25,370.

         , J. Greenberg, A. Guenther, G. Tyndall, P. Zimmerman, M. Bangui*, J-M. Moutsamboté*, and D. Kenfack*, 1998: Patterns in volatile organic compound emissions along a savanna-rainforest gradient in central Africa. J. Geophys. Res., 103, 1443-1454.

Lee-Taylor, J., S. Doney, and G. Brasseur, 1998: A global three-dimensional atmosphere-ocean model of methyl bromide distributions. J. Geophys. Res., 103, 16,039-16,057.

*López-Puertas, M., G. Zaragoza*, M. López-Valverde*, F. Martin-Torres*, G. Shved*, R. Manuilova*, A. Kutepov*, O. Gusev*, T. von Clarmann*, A. Linden*, G. Stiller*, A. Wegner*, H. Oelhaf*, D. Edwards, and J. Flaud*, 1998: Non-local thermodynamic equilibrium limb radiances for the MIPAS instrument on Envisat-1. J. Quant. Spectrosc. Radiat. Transfer, 59, 377-403.

Madronich, S., and S. Flocke, 1997: Theoretical estimation of biologically effective UV radiation at the earth’s surface. ASI Series, I 52, Solar Ultraviolet Radiation Modelling, Measurements and Effects. C. S. Zerefos and A. F. Bais, Eds., Springer-Verlag.

*Mari, C., K. Suhre*, T. Bates*, J. Johnson*, R. Rosset*, A. Bandy*, F. Eisele, R. Mauldin, and D. Thornton*, 1998: Physico-chemical modeling of the First Aerosol Characterization Experiment (ACE 1) Lagrangian B 2. DMS emission, transport and oxidation at the mesoscale. J. Geophys. Res., 103, 16,45l7-16,473.

Massie, S., D. Baumgardner, and J. Dye, 1998: Estimation of polar stratospheric cloud volume and area densities from UARS, stratospheric aerosol measurement II, and polar ozone and aerosol measurement II extinction data. J. Geophys. Res., 103, 5773-5783.

*Matthijsen, J., K. Suhre*, R. Rosset*, F. Eisele, R. Mauldin, and D. Tanner, 1998: Photodissociation and UV radiative transfer in a cloudy atmosphere: Modeling and measurements. J. Geophys. Res., 103, 16,665-16,676.

Mauldin III, R., D. Tanner, and F. Eisele, 1998: A new chemical ionization mass spectrometer technique for the fast measurement of gas phase nitric acid in the atmosphere. J. Geophys. Res., 103, 3361-3367.

         , S. Madronich, S.J. Flocke, F.L. Eisele, G.J. Frost*, and A.S.H. Prevot*, 1997: New insights on OH: Measurements around and in clouds. Geophys. Res. Lett., 24, 3033-3036.

            , et al., 1998: OH measurements during the First Aerosol Characterization Experiment (ACE 1): Observations and model comparisons. J. Geophys. Res., 103, 16,713-16,729.

*Meier, R.R., G.P. Anderson*, C.A. Cantrell, L.A. Hall*, J. Lean*, K. Minschwaner*, R.E. Shetter, E.P. Shettle*, and K. Stamnes*, 1997: Review paper on Actinic radiation in the terrrestrial atmosphere. J. Atmos. Solar-Terres. Phys., 59, 2111-2157.

*Mergenthaler, J., J. Kumer*, A. Roche*, and S. Massie, 1997: Distribution of Antarctic polar stratospheric clouds as seen by the CLAES experiment. J. Geophys. Res., 102, 19,161-19,170.

*Nevison, C., and E. Holland, 1997: A reexamination of the impact of anthropogenically fixed nitrogen on atmospheric N2O and the stratospheric O3 layer. J. Geophys. Res., 102, 25,519-25,536.

Orlando, J., G. Tyndall, et al., 1998: Laboratory and theoretical study of the oxy radicals in the OH- and Cl-initiated oxidation of ethene. J. Phys. Chem. A., 102, 8116-8123.

Pan, L., S. Solomon, W. Randel, J-F. Lamarque, P. Hess, J. Gille, Er-W. Chiou*, and M.P. McCormick*, 1997: Hemispheric asymmetries and seasonal variations of the lowermost stratospheric water vapor and ozone derived from SAGE II data. J. Geophys. Res., 102, 28,177-28,184.

Randel, W., F. Wu, J. Russell III*, A. Roche*, and J. Waters*, 1998: Seasonal cycles and QBO variations in stratospheric CH4 and H2O observed in UARS HALOE data. J. Atmos. Sci., 55, 163-185.

Ridley, B., E. Atlas, J. Walega, G. Kok, T. Staffelbach, J. Greenberg, F. Grahek, P. Hess, and D. Montzka, 1997: Aircraft measurements made during the spring maximum of ozone over Hawaii: Peroxides, CO, O3, NOy, condensation nuclei, selected hydrocarbons, halocarbons, and alkyl nitrates between 0.5 and 9 km altitude. J. Geophys. Res., 102, 18,935-18,961.

         , J. Walega, et al., 1998: Measurements of NOx and PAN and estimates of O3 production over the seasons during Mauna Loa Observatory Photochemistry Experiment 2. J. Geophys. Res., 103, 8323-8339.

         , J. Walega, J-F. Lamarque, F. Grahek, M. Trainer*, G. Hübler*, X. Lin*, and F. Fehsenfeld*, 1998: Measurements of reactive nitrogen and ozone to 5-km altitude in June 1990 over the southeastern United States. J. Geophys. Res., 103, 8369-8388.

*Rothman, L., C. Rinsland*, A. Goldman, S. Massie, D. Edwards, et al., 1998: The HITRAN molecular spectroscopic database and HAWKS (HITRAN atmospheric workstation): 1996 edition. J. Quant. Spectrosc. Radiat. Transfer, 60, 665-710.

Sassi, F., and R. Garcia, 1997: The role of equatorial waves forced by convection in the tropical semiannual oscillation. J. Atmos. Sci., 54, 1925-1942.

Schauffler, S., E. Atlas, F. Flocke, R. Lueb, V. Stroud, and W. Travnicek, 1998: Measurements of bromine containing organic compounds at the tropical tropopause. Geophys. Res. Lett., 25, 317-310.

*Schimel, J., and E.A. Holland, 1997: Global Gases. Principles and Applications of Soil Microbiology. D. Sylvia, J. Fuhrmann, P. Hartel and D. Zuberer, Eds., Prentice Hall, 498-516.

*Sehested, J., L. Christensen*, O. Nielsen*, M. Bilde*, T. Wallington*, W. Schneider*, J. Orlando, and G. Tyndall, 1998: Atmospheric chemistry of acetone: Kinetic study of the CH3C(O)CH2O2 + NO/NO2 reactions and decomposition of CH3C(O)CH2O2NO2. Int. J. Chem. Kinetics, 30, 475-489.

         , L. Christensen*, T. Møgelberg*, O. Nielsen*, T. Wallington*, A. Guschin*, J. Orlando, and G. Tyndall, 1998: Absolute and relative rate constants for the reactions CH3C(O)O2 + NO and CH3C(O)O2 + NO2 and thermal stability of CH3C(O)O2NO2. J. Phys. Chem. A, 102, 1779-1789.

Serça, D., A. Guenther, L. Klinger, D. Helmig, D. Hereid, and P. Zimmerman, 1998: Methyl bromide deposition to soils. Atmos. Environ., 32, 1581-1586.

*Sharkey, T., F. Loreto*, D. Baldocchi*, and A. Guenther, 1997: The BEMA-project-A North American perspective. Atmos. Environ., 31, 251-255.

Shiotani, M., J.C. Gille, and A.E. Roche*, 1997: Kelvin waves in the equatorial lower stratosphere as revealed by cryogenic limb array etalon spectrometer temperature data. J. Geophys. Res., 102, 26,131-26,140.

*Sicard, M., K. Thome*, B. Crowther*, and M. Smith, 1998: Shortwave infrared spectroradiometer for atmospheric transmittance measurements. J. Atmos. Oceanic Tech., 15, 174-183.

Smith, A., 1997: Longitudinal variability of the mesopause SAO. Geophys. Res. Lett., 24, 1991-1994.

         , 1997: Stationary planetary waves in upper mesospheric winds. J. Atmos. Sci., 54, 2129-2145.

*Suhre, K., C. Mari*, T. Bates*, J. Johnson*, R. Rosset*, Q. Wang*, A. Bandy*, D. Blake*, S. Businger*, F. Eisele, B. Huebert*, G. Kok, R. Mauldin, A. Prevot*, R. Schillawski*, D. Tanner, and D. Thornton*, 1998: Physico-chemical modeling of the First Aerosol Characterization Experiment (ACE 1) Lagrangian B 1. A moving column approach. J. Geophys. Res., 103, 16,433-16,455.

*Tan, D., I. Faloona*, W. Brune*, A. Weinheimer, T. Campos, B. Ridley, S. Vay*, J. Collins*, and G. Sachse*, 1998: In situ measurements of HOx in aircraft exhaust plumes and contrails during SUCCESS. Geophys. Res. Lett., 25, 1721-1724.

Tie, X.X., and P. Hess, 1997: Ozone mass exchange between the stratosphere and troposphere for background and volcanic sulfate aerosol conditions. J. Geophys. Res., 102, 25,487-25,500.

         , C. Granier, W. Randel, and G. Brasseur, 1997: Effects of interannual variation of temperature on heterogeneous reactions and stratospheric ozone. J. Geophys. Res., 102, 23,519-23,527.

*Tourpali, K., X.X. Tie, C.S. Zerefos*, and G. Brasseur, 1997: Decadal evolution of total ozone decline: Observations and model results. J. Geophys. Res., 102, 23,955-23,962.

Tyndall, G., C. Kegley-Owen, J. Orlando, and J. Calvert, 1997: Quantum yields for Cl(2P3/2,1/2), ClO and O(3P) in the photolysis of chlorine nitrate at 308 nm. J. Chem. Soc., Faraday Trans., 93, 2675-2682.

         , J. Orlando, T. Wallington* and M. Hurley*, 1997: Pressure dependence of the rate coefficients and product yields for the reaction of CH3CO radicals with O2. Int. J. Chem. Kinetics, 29, 655-663.

         , T. Wallington* and J. Ball*, 1998: FTIR product study of the reactions CH3O2 + CH3O2 and CH3O2 + O3. J. Phys. Chem. A, 102, 2547-2554.

*Van Roozendael, M., M. De Mazière*, C. Hermans*, P. Simon*, J.-P. Pommereau*, F. Goutail*, X. Tie, G. Brasseur, and C. Granier, 1997: Ground-based observations of stratospheric NO2 at high and midlatitudes in Europe after the Mount Pinatubo eruption. J. Geophys. Res., 102, 19,171-19,176.

*Waugh, D.W., T.M. Hall*, W.J. Randel, P.J. Rasch, B.A. Boville, K.A. Boering*, S.C. Wofsy*, B.C.Daube*, J.W. Elkins*, D.W. Fahey*, G.S. Dutton*, C.M. Volk*, and P.F. Vohralik*, 1997: Three-dimensional simulations of long-lived tracers using winds from MACCM2. J. Geophys. Res., 102, 21,493-21,513.

*Weber, R., P. McMurry*, L. Mauldin, D. Tanner, F. Eisele, et al., 1998: A study of new particle formation and growth involving biogenic and trace gas species measured during ACE 1. J. Geophys. Res., 103, 16,385-16,396.

Weinheimer, A., et al., 1998: Comparison between DC-8 and ER-2 species measurements in the tropical middle troposphere: NO, NOy, O3, CO2, CH4, and N2O. J. Geophys. Res., 103, 22,087-22,096.

          , T. Campos, J. Walega, F. Grahek, B. Ridley, D. Baumgardner, C. Twohy, and B. Gandrud, 1998: Uptake of NOy on wave-cloud ice particles. Geophys. Res. Lett., 25, 1725-1728.

*Wennberg, P.O., T.F. Hanisco*, L. Jaeglé*, D.J. Jacob*, E.J. Hintsa*, E.J. Lanzendorf*, J.G. Anderson*, R.-S. Gao*, E.R. Keim*, S.G. Donnelly*, L.A. Del Negro*, D.W. Fahey*, S.A. McKeen*, R.J. Salawitch*, C.R. Webster*, R.D. May*, R.L. Herman*, M.H. Proffitt*, J.J. Margitan*, E.L. Atlas, S.M. Schauffler, F. Flocke, C.T. McElroy*, and T.P. Bui*, 1998: Hydrogen radicals, nitrogen radicals, and the production of O3 in the upper troposphere. Science, 279, 49-53.

*Witte, J.C., I.A. Folkins, J. Neima*, B.A. Ridley, J.G. Walega ,and A.J. Weinheimer, 1997: Large-scale enhancements in NO/NOy from subsonic aircraft emissions: Comparisons with observations. J. Geophys. Res., 102, 28,169-28,175.

*Yudin, V., M. Geller*, B. Khattatov, A. Douglass*, M. Cerniglia*, J. Waters*, L. Elson*, A. Roche*, and J. Russell III*, 1997: A UARS study of lower stratospheric polar processing in the early stages of northern and southern winters. J. Geophys. Res., 102, 19,137-19,148.

*Yudin, V.A., B.V. Khattatov, M.A. Geller*, D.A. Ortland*, C. McLandress*, and G.G. Shepherd*, 1997: Thermal tides and studies to tune the mechanistic tidal model using UARS observations. Ann. Geophysicae, 15, 1205-1220.